Yep, I too was caught on with the hype and had pre-ordered the book from Amazon. They had guaranteed delivery on the day the book would get released...but unfortunately I missed out the fine print that mentioned I need to select "Standard Shipping" while ordering. So instead I selected "Free Shipping". When I was tracking my order, I realised my mistake and realized my book will arrive only on Monday.
But surprise! Come Saturday, I was alone at home playing The Legend of Zelda on my Wii when the door bell rang. I opened the door to see the postman walking away after leaving the parcel at the door. When I saw him wave at me, I realized it was the book! They hadn't packed the book in the regular amazon brown box, but in a white box with a picture of an owl on it and on it was written "Attention Muggles! Do Not Deliver Or Open Before July 21"
Since then I've been with the book. I started at around 3.00pm on Saturday and finished at 11.00pm on Sunday. Well, I wont be writing a review here since I am sure the Internet and any other form of media is all over and about it. And I certainly dont wanna spoil some one's fun by giving away the story. Coz I myself have undergone much trouble and suppressed temptation to know the leaked story just to see whether it was the real one.